I have a cockerel who is about 23 weeks old now. He's extremely good with the pullets, even running over from wherever he is if he hears a hen in distress. If it's because a younger cockerel (he's the oldest) is trying to breed, this guy will break it up and then leave the hen alone. Other roosters that I've had would try to join in, or "claim the prize," but he doesn't do that. He does breed, but not in that type of circumstance. The hens like him, and he's never hurt me, but several times he has run up behind me and body slammed me in the back of the leg. No pecking, just slamming me. Once when I stomped my foot toward him because I didn't like the way he was looking at me, he flared up his neck feathers like we were going to fight. I am wondering if this behavior will mellow, or get worse as he matures. I can pick him up, or pet him when he's roosting. He is clearly just acting that way to protect the girls. If he gets worse, I will take him out of the game. Here's the thing though. I was hoping to breed him. He is a Mottled Java and I have 4 hens of that breed, two of which I am considering breeding. Does this sound like an overly aggressive cockerel to you? I've had pullets who were aggressive before POL, and then mellowed and became the best mothers of all. I can handle this boy the way he is, and if he gets worse my path becomes clear. But I don't want to breed irresponsibly. Thoughts? Thanks!